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CN-224218928-U - Harvester dials tooth mechanism and harvester

CN224218928UCN 224218928 UCN224218928 UCN 224218928UCN-224218928-U

Abstract

The utility model aims to provide a harvester gear shifting mechanism and a harvester, which comprise a front cover plate, a rear cover plate, a chain A, rotating wheels B and gear shifting A, wherein the front cover plate and the rear cover plate are oppositely arranged and connected through connecting plates, transmission grooves are respectively formed in the outer side surfaces of the front cover plate and the rear cover plate, the rotating wheels A and the rotating wheels B are respectively arranged at the left end and the right end of the front cover plate and the rear cover plate, the chain A is wound on the rotating wheels A and the rotating wheels B, the chains A at the two sides respectively pass through the front cover plate and the rear cover plate, a plurality of groups of gear shifting A are uniformly arranged on the chain A at intervals, the gear shifting A can rotate based on a rotating shaft, a stop block and a roller are arranged at the rear end of the gear shifting A, the inner side wall of the front cover plate is in contact with the inner side surfaces of the roller and the stop block, the gear shifting A extends out of the transmission grooves perpendicularly to the chain A, a space B is reserved between the inner side wall of the rear cover plate and the inner side surfaces of the roller and the stop block, and the gear shifting A can be retracted into the transmission grooves along the reverse direction of the movement of the chain A. The utility model can lead the harvester to be more miniaturized and lighter.

Inventors

  • LI GANG
  • PAN CAILING
  • HUANG JUN
  • LI TING
  • WANG PENGZHAO

Assignees

  • 柳州广鹏农机制造有限公司

Dates

Publication Date
20260512
Application Date
20250526

Claims (10)

  1. 1. The utility model provides a harvester dials tooth mechanism, includes front shroud (1), back shroud (2), chain A (3), rotation wheel A (4), rotation wheel B (5), dials tooth A (6), its characterized in that: The front cover plate (1) and the rear cover plate (2) are oppositely arranged and connected through a connecting plate (7), the outer side surfaces of the front cover plate (1) and the rear cover plate (2) are respectively provided with a transmission groove (8), and the left end surface and the right end surface of the front cover plate (1) and the rear cover plate (2) are both of an opening structure; The outer sides of the left end and the right end of the front cover plate (1) and the rear cover plate (2) are respectively provided with a rotating wheel A (4) and a rotating wheel B (5), and the rotating wheel A (4) or the rotating wheel B (5) is connected with a power device through a transmission mechanism; The chain A (3) is wound on the rotating wheel A (4) and the rotating wheel B (5), and the chains A (3) at two sides respectively pass through the front cover plate (1) and the rear cover plate (2), a plurality of groups of poking teeth A (6) are uniformly arranged on the chain A (3) at intervals, and when the chains A (3) pass through the front cover plate (1) or the rear cover plate (2), the front ends of the poking teeth A (6) can extend out of the transmission groove (8); the rear part of the shifting tooth A (6) is arranged on the chain A (3) through a rotating shaft (9) and can rotate based on the rotating shaft (9), two sides of the rear end of the shifting tooth A (6) are provided with extension parts (10) which extend inwards to the outside of the inner side of the chain A (3), the rear end of the extension parts (10) is provided with a stop block (11), the rear end of the shifting tooth A (6) is provided with a roller (12), and the stop block (11) is positioned at the rear side of the roller (12) in the moving direction of the chain A (3); The inner side wall of the front cover plate (1) is contacted with the roller (12) and the inner side surface of the stop block (11), so that the shifting tooth A (6) cannot rotate forwards or backwards, and the shifting tooth A (6) extends out of the transmission groove (8) perpendicular to the chain A (3); The inner side wall of the rear cover plate (2), the roller (12) and the inner side face of the stop block (11) are provided with a distance B, the distance B enables the stop block (11) not to interfere rotation of the shifting tooth A (6), and the shifting tooth A (6) can be retracted into the transmission groove (8) along the reverse direction of movement of the chain A (3).
  2. 2. The harvester gear shifting mechanism according to claim 1, wherein the inner side surface of the stop block (11) is overlapped with the tangential surface corresponding to the innermost point of the outer circumference of the roller (12).
  3. 3. The harvester shifting gear mechanism as set forth in claim 1, characterized in that the shifting gear A (6) comprises a shifting plate (13) and side plates (14), wherein the side plates (14) are arranged in parallel, the front sides of the two groups of side plates (14) are connected through the shifting plate (13), when the harvester shifting gear is installed, the shifting plate (13) is positioned at the front side of the moving direction of the chain A (3), the lower edge of the shifting plate (13) is close to the chain A (3), and the shifting gear A (6) can be limited to rotate forwards from back to back.
  4. 4. The harvester gear shifting mechanism according to claim 3, wherein the side plate (14) is of a right triangle structure, one right-angle side of the right triangle is connected with the shifting plate (13), and the bevel edge is positioned at the rear side of the moving direction of the chain A (3); the extension part (10) is arranged on the other right-angle side of the right-angle triangle and is positioned at the rear side of the moving direction of the chain A (3).
  5. 5. The tooth-pulling mechanism of harvester according to claim 4, wherein the extending part (10) of each side plate (14) is provided with a stop block (11), and the front ends of the side plates (14) are respectively provided with a group of rollers (12) through wheel shafts.
  6. 6. The harvester gear shifting mechanism as in claim 1, wherein the two side surfaces of the rotating wheel A (4) and the rotating wheel B (5) are respectively provided with a round top block (15), and the outer circumference of the round top block (15) is respectively contacted with the stop block (11) and the roller (12) of the gear shifting wheel A (6) passing through the round top block so that the gear shifting wheel A and the roller cannot be retracted.
  7. 7. A sugar cane harvester employing a harvester tooth shifting mechanism as claimed in any one of claims 1 to 6, wherein: The harvester further comprises a frame (16), a material-dividing sugarcane-supporting mechanism (17), a cutting mechanism (18) and a guide rod (19), wherein the frame (16) is arranged at the front part of the harvester, and the material-dividing sugarcane-supporting mechanism (17), the cutting mechanism (18), the guide rod (19) and the harvester tooth-pulling mechanism are all arranged on the frame (16); The harvester gear shifting mechanism and the guide rod (19) are mutually matched and installed in the middle of the frame (16) to form a conveying channel, an inlet of the conveying channel corresponds to the outlet of the rear end of the material distributing mechanism, and an outlet of the conveying channel extends to the right side of the frame.
  8. 8. The sugarcane harvester as in claim 7 wherein: The middle part and the bottom of the frame (16) are respectively provided with a group of conveying channels formed by a harvester tooth shifting mechanism and a guide rod (19), and the two groups of conveying channels are matched up and down.
  9. 9. The sugarcane harvester as in claim 7 wherein: The sugarcane separating and supporting mechanism (17) comprises a separating rod (20), a large poking wheel (21) and a transmission chain mechanism, wherein the separating rod (20) is provided with two groups and is respectively arranged at two sides of the front end of a rack (16), the transmission chain mechanism is arranged on the rack (16) and is positioned at the rear end of the separating rod (20), the transmission chain mechanism comprises a protection shell (22), a chain B (23), poking teeth B (24), a driven wheel and a driving wheel, the driven wheel and the driving wheel are respectively arranged on the rack through shafts, the chain B (23) is wound on the driven wheel and the driving wheel, a plurality of groups of poking teeth B (24) are uniformly arranged on the chain B (23) at intervals, the protection shell (22) is arranged between the driven wheel and the driving wheel, the top surface and the bottom surface of the chain B (23) at the position are wrapped, and the poking teeth B (24) extend out of grooves on the outer side surface of the protection shell (22); the large poking wheel (21) is arranged on the frame (16) beside the transmission chain mechanism through a non-power shaft (25), and a plurality of groups of poking teeth (26) are uniformly arranged on the outer circumference of the large poking wheel (21) at intervals; the chain B (23) rotates to drive the poking teeth B (24) to poke the sugarcane, and the sugarcane contacts the poking teeth (26) so that the large poking wheel (21) rotates along with the sugarcane, and the sugarcane is transmitted to the conveying channel.
  10. 10. The sugarcane harvester as set forth in claim 9, wherein the front part of the conveying channel is not provided with a guide rod (19), and a poking tooth A (6) on a poking tooth mechanism of the harvester at the front part of the conveying channel is matched with a large poking wheel (21) to form a conveying structure.

Description

Harvester dials tooth mechanism and harvester Technical Field The utility model relates to the technical field of agricultural machinery, in particular to a harvester tooth shifting mechanism and a harvester. Background Sugarcane is one of important cash crops in southern areas of China, the sugar content of sugarcane stalks reaches 55% -70%, and sucrose processed and produced by the sugarcane stalks occupies an important position in our production and life. In addition, the bagasse after processing is also a good raw material for brewing and papermaking. The annual raw material sugarcane exceeds 10000 ten thousand tons per mu calculated according to the mu yield of the sugarcane of 4 tons per mu, and the total yield of the sucrose reaches 1400 ten thousand tons per year. Because the sugarcane planting areas in China are in hilly areas, the areas are dispersed, the terrains are complex, and the large-scale cut-off sugarcane harvester is not suitable for popularization and use in China and has high introduction cost. Therefore, it is of great importance to develop a tooth shifting mechanism that is more advantageous for small harvester applications and, accordingly, smaller and lighter harvesters. Disclosure of utility model The utility model aims to provide a harvester gear shifting mechanism and a harvester, wherein the harvester gear shifting mechanism can automatically retract a gear shifting A under the reaction force of objects such as sugarcane after the transmission is completed, and can effectively reduce the volume of the gear shifting mechanism and the space required by installing the gear shifting mechanism, thereby further enabling the harvester to be miniaturized and light. Meanwhile, due to the structural design of the poking tooth A, objects such as sugarcane and sugarcane leaves can be effectively prevented from being brought in when the chain A returns, and equipment such as a transmission mechanism and a power device are prevented from being damaged. In order to solve the problems, the technical scheme of the utility model is as follows: The harvester tooth shifting mechanism comprises a front cover plate, a rear cover plate, a chain A, a rotating wheel B and a tooth shifting A; The front cover plate and the rear cover plate are oppositely arranged and connected through connecting plates, the outer side surfaces of the front cover plate and the rear cover plate are respectively provided with a transmission groove, and the left end surface and the right end surface of the front cover plate and the rear cover plate are both of an opening structure; The outer sides of the left end and the right end of the front cover plate and the rear cover plate are respectively provided with a rotating wheel A and a rotating wheel B, and the rotating wheel A or the rotating wheel B is connected with a power device through a transmission mechanism; The chain A is wound on the rotating wheel A and the rotating wheel B, and the chains A on two sides respectively pass through the front cover plate and the rear cover plate, a plurality of groups of shifting teeth A are uniformly arranged on the chain A at intervals, and when the chain A passes through the front cover plate or the rear cover plate, the front ends of the shifting teeth A can extend out of the transmission grooves; The rear part of the shifting tooth A is arranged on the chain A through a rotating shaft and can rotate based on the rotating shaft, two sides of the rear end of the shifting tooth A are provided with extension parts which extend inwards to the outside of the inner side of the chain A, and the rear end of the extension parts are provided with stop blocks; the inner side wall of the front cover plate is contacted with the roller and the inner side surface of the stop block, so that the shifting tooth A can not rotate forwards or backwards, and the shifting tooth A extends out of the transmission groove perpendicular to the chain A; The inner side wall of the rear cover plate, the roller and the inner side face of the stop block are provided with a distance B, the distance B enables the stop block not to interfere rotation of the shifting tooth A, and the shifting tooth A can be retracted into the transmission groove along the reverse direction of movement of the chain A. The inner side surface of the stop block is overlapped with the tangential surface corresponding to the innermost point of the outer circumference of the roller. The shifting tooth A comprises shifting plates and side plates, the two groups of side plates are arranged in parallel, the front sides of the two groups of side plates are connected through the shifting plates, when the shifting plate is arranged on the front side of the moving direction of the chain A, the lower edge of the shifting plate is close to the chain A, and the shifting tooth A can be limited to rotate forwards from the back. The side plate is of a right triangle structure, one right-angle side of t